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http://www.arcetri.astro.it/science/starform/preprints/mosca_03.pdf.
http://www.arcetri.astro.it/science/starform/preprints/mosca_03.pdf.
1. A universal physical relation for quasars
... A universal physical relation for quasars . ... Harvey Tananbaum and his collaborators have first observed a relation between the soft X-ray and the optical/ultraviolet emission in AGN in 1979. Such relation is nonlinear, and it is usually parameterized as dependence between the logarithm of the monochromatic luminosities at 2500 †Е ( L 2500†Е ) and 2 keV ( L 2keV ) . ... Yet, the dispersion along the L 2500†Е тАУ L 2keV relationship is found to be rather high, typically ~0.35тАУ0.4 in log units. ...
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Ссылки http://www.arcetri.astro.it/en/previous/204-scientific-news/1050-beta-guido -- 28.2 Кб -- 10.04.2016
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